uros-db commented on code in PR #47845:
URL: https://github.com/apache/spark/pull/47845#discussion_r1728939148
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sql/core/src/test/scala/org/apache/spark/sql/CollationStringExpressionsSuite.scala:
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@@ -112,6 +113,50 @@ class CollationStringExpressionsSuite
})
}
+ test("Support `StringSplitSQL` string expression with collation") {
+ case class SplitPartTestCase[R](
+ str: String,
+ delimiter: String,
+ collation: String,
+ result: R)
+ val testCases = Seq(
+ SplitPartTestCase("1a2", "a", "UTF8_BINARY", Array("1", "2")),
+ SplitPartTestCase("1a2", "a", "UNICODE", Array("1", "2")),
+ SplitPartTestCase("1a2", "A", "UTF8_LCASE", Array("1", "2")),
+ SplitPartTestCase("1a2", "A", "UNICODE_CI", Array("1", "2"))
+ )
+ testCases.foreach(t => {
+ // Unit test.
+ val str = Literal.create(t.str, StringType(t.collation))
+ val delimiter = Literal.create(t.delimiter, StringType(t.collation))
+ checkEvaluation(StringSplitSQL(str, delimiter), t.result)
+ })
+
+ // Because `StringSplitSQL` is an internal expression, E2E SQL test cannot
be performed.
Review Comment:
```suggestion
// Because `StringSplitSQL` is an internal expression, E2E SQL test
cannot be performed in `collations.sql`.
```
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